Answer:
150x + b = 700 when x = 3
Step-by-step explanation:
x represents the number of hours.
b represents the initial fee.
shirley paid for 3 hours, therefore x = 3.
$150 x 3 = $450
$450 + b = $700
subtract $450 from both sides.
b = $250
the initial fee is $250.
Answer:
Equation: y = 150x + 700
Initial Fee: 250
Step-by-step explanation:
150 x 3 = 450
450 + b = 700
-450 -450
b = $250